Lots of codes - need help!
Thread Starter
Burning Brakes
Joined: Oct 2006
Posts: 788
Likes: 2
From: The People's Republic of NY
Lots of codes - need help!
I had the gas gauge dropping to zero problem last year and had the right side siphon jet and fuel sending unit replaced which cured the problem. When I filled the gas tank today, I got 6 gallons in and it took me about 10 minutes to get in the other 9 gallons. This was the first time that happened. I've been putting a bottle of Techron in the tank every 4th fill-up as a precaution. When I got home, I pulled the codes and this is what I found:
28 TCS U1016H
Radio U1016H
AO LDCM U1255H, U1064H, U1016H, U1096H
A1 RDCM U1255H, U1064H, U1016H, U1096H
When I looked these up, I found that these are Loss of Communication codes. What does that really mean? As far as I can tell, the car seems to drive fine and operate normally (other than having a difficult time filling the gas tank today). Any help?
28 TCS U1016H
Radio U1016H
AO LDCM U1255H, U1064H, U1016H, U1096H
A1 RDCM U1255H, U1064H, U1016H, U1096H
When I looked these up, I found that these are Loss of Communication codes. What does that really mean? As far as I can tell, the car seems to drive fine and operate normally (other than having a difficult time filling the gas tank today). Any help?
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
Sounds like you really ran the tanks low. Not a great idea for several reasons, however that should not cause your filling problem.
Would suggest you drive down to about 1/4 full and try to refill and see if you have the same problem or if it was a one time anomaly. Hope it was.
Would suggest you drive down to about 1/4 full and try to refill and see if you have the same problem or if it was a one time anomaly. Hope it was.
Thread Starter
Burning Brakes
Joined: Oct 2006
Posts: 788
Likes: 2
From: The People's Republic of NY
OK, dumb question time: I didn't have any trouble taking off the nut that holds the ground connections to the frame, but how do you get the connector apart? On one side of the connector, it looked like there was a small tab that I could push in with a little screw driver but I didn't see anything on the other side. I really don't want to break anything.
Race Director
Joined: Mar 2008
Posts: 12,413
Likes: 502
From: Rio Rancho NM
OK, dumb question time: I didn't have any trouble taking off the nut that holds the ground connections to the frame, but how do you get the connector apart? On one side of the connector, it looked like there was a small tab that I could push in with a little screw driver but I didn't see anything on the other side. I really don't want to break anything.
Thread Starter
Burning Brakes
Joined: Oct 2006
Posts: 788
Likes: 2
From: The People's Republic of NY
Instructor
Joined: Oct 2006
Posts: 104
Likes: 2
From: Lee’s Summit, Mo
Check the ground in the Passenger door. Their is a board out their, It took 6 hours for the guys at Chevy to fine it for me 10 years ago. it is the DCM.
Last edited by Bajapit; Jun 29, 2014 at 08:54 PM.
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Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC